Bore patches have made it into the 21st century with this innovation from VFG weapon care.
VFG should stand for Very effing Good!
Little woollen pellets that fit snugly in your barrel, or very snugly if you buy the intensive version that have brass strands mixed into the wool. You can pull them on a wire, or you can push them with a rod. They really do remove an unbelievable amount of crud. Making a satisfying squeak as they do it.
Horrible price, but if you hunt around you will find them for about half the price of the most expensive offer. Only ever buy the bags of 500, they're only twice the price of the boxes of 50.
I got the last lot posted from Norway which was cheaper than the previous purchase from Amazon.
It took me a while to accrue the calibers I shoot, and I still don't have .303. No one seems to stock every size, and the intensive's have similar availability to rocking horse poop.
More soon
Your pal
SBW